A man of mass m is standing on a bridge h meters high. The man is...
A man of mass m is standing on a bridge h meters high. The man is l m tall and he has a bungee chord attached to him that is L m long. The man bungee jumps of the bridge so that he just "kisses" the water below. The chord stretches x m. Form an equation for the height. (hint: you will use the quadratic equation and spring constant)
Homework Answers
so after falling L meter kinetic energy will convert into springs potential energy
so
(1/2)mv2 = (1/2) kx2
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A man of mass m is standing on a
bridge h meters high. The man is...
An 80.0 kg bungee jumper drops from rest off a bridge that is 200.0 m above...
An 80.0 kg bungee jumper drops from rest off a bridge that is 200.0 m above a river. As he falls, air resistance is negligible, and the unstretched bungee cord attached to him uncoils. The mass of the bungee cord is negligible. When the jumper is 50.0 m below the bridge, the bungee cord is completely uncoiled and forms a straight line. Below that point, the bungee cord acts as a spring, obeying Hooke's law as it is stretched beyond...
Two men are standing on a bridge, getting ready to bungee jump off using the same...
Two men are standing on a bridge, getting ready to bungee jump
off using the same bungee at the same time. The masses of the men
are 100 kg and 70kg. The k of the cord is 3 kN/m.
What is the maximum L can be so that at full length, it will
just barely reach the water 100 meters below?
After the men reach the water, the heavier one legs go and stays
in the water, launching the lighter...
You and a friend decide to go bungee jumping off a nearby bridge. Tests of the...
You and a friend decide to go bungee jumping off a nearby bridge. Tests of the bungee demonstrate that it behaves like an ideal spring. When your friend (mass=75kg) jumps you are on a rock 40.0m below the bridge and observe him to pass you at 25m/s. The bungee hangs 20.0m below the bridge when nothing is attached and 25.0m when a 75kg mass is attached but at rest (equilibrium). a) Use conservation of energy to write down a relation...
EXAMPLE 6.3 Bungee Jumper A bungee jumper locates a suitable bridge that is 75.0 m above...
EXAMPLE 6.3 Bungee Jumper A bungee jumper locates a suitable bridge that is 75.0 m above the river below, as shown in Figure 6.14. The jumper has a mass of m-80.0 kg and a height of Ljumper 1.85 m, we can think of a bungee cord as a spring. The spring constant of the bungee cord is k-50.0 N/m. Assume that the mass of the bungee cord is negligible compared with the jumper's mass Lo PROBLENM The jumper wants to...
A 65.2-kg bungee jumper is standing on a tall platform (h_0 = 46.2 m), as indicated...
A 65.2-kg bungee jumper is standing on a tall platform (h_0 = 46.2 m), as indicated in the figure. The bungee cord has a natural length of L_0 = 8.40 m and, when stretched, behaves like an ideal spring with a spring constant of k = 48.3 N/m. The jumper falls from rest, and it is assumed that the only forces acting on him are his weight and, for the latter part of the descent, the elastic force of the...
4./Your adventurous friend Lola goes bungee jumping. She leaps from a bridge that is 100 m...
4./Your adventurous friend Lola goes bungee jumping. She leaps from a bridge that is 100 m above a river. Her bungee cord has an un-stretched length of 50 m and a spring constant k - 600 N/m. Lola has a mass of 48 kg. How fast is she falling when she just starts to stretch the cord? How long does it take for Lola to reach this point? a) Lola stretches the bungee cord and it brings her to a...
An 80kg man decides to bungee jump off a bridge but finds out that his rope...
An 80kg man decides to bungee jump off a bridge but finds out that his rope is too long. The man strikes the water with a velocity of 24.53 m/s. The stiffness of the elastic cord is k=75 N/m. If there were no water present, the man would stop after 7.42 m due to his elastic bungee cord. Neglect the size of the man. Determine the Impact Force (The force of which he hits the water). Determine the force the...
I uetermi ine how high to start to just touch the water below? Experiment Overview This...
I uetermi ine how high to start to just touch the water below? Experiment Overview This experiment will model a bungee jumper who jumps from a The bridge into a canyon. bungee jumpe bouncing back up towards the bridge. The ex spring represents the connected r fa Ils and just barely touches the water in the river below before perimental apparatus is shown in Fig. 1. The e bungee cord. The egg represents the surface of the water. A mass...
Two people respectively 100kg and 70kg, are standing on a bridge 100m above water. They are attached to an bungee cable with coefficient of k=3 kN/m. Find Initial length of the cable if its max length...
Two people respectively 100kg and 70kg, are standing on a bridge
100m above water. They are attached to an bungee cable with
coefficient of k=3 kN/m. Find Initial length of the cable if its
max length is when the people touch the water. Height of people is
negligible. Found L initial to be 10.54m. Now I must find the
height person 2 (70kg) will reach on the way back up if person one
(100kg) were to let go when max...
When bungee jumping from a high bridge over Victoria Falls, an operator first attaches an elastic...
When bungee jumping from a high bridge over Victoria Falls, an operator first attaches an elastic rope to the jumper. The jumper then jumps off the bridge, falling freely until they reach the unstretched length of the rope Then, the rope begins to stretch and slows the jumper to a stop. The rope pulls the jumper back up, and they oscillate up and down for a while until the operator pulls the jumper back up to the bridge. The rope...
An 80.0 kg bungee jumper drops from rest off a bridge that is 200.0 m above a river. As he falls, air resistance is negligible, and the unstretched bungee cord attached to him uncoils. The mass of the bungee cord is negligible. When the jumper is 50.0 m below the bridge, the bungee cord is completely uncoiled and forms a straight line. Below that point, the bungee cord acts as a spring, obeying Hooke's law as it is stretched beyond...
Two men are standing on a bridge, getting ready to bungee jump
off using the same bungee at the same time. The masses of the men
are 100 kg and 70kg. The k of the cord is 3 kN/m.
What is the maximum L can be so that at full length, it will
just barely reach the water 100 meters below?
After the men reach the water, the heavier one legs go and stays
in the water, launching the lighter...
EXAMPLE 6.3 Bungee Jumper A bungee jumper locates a suitable bridge that is 75.0 m above the river below, as shown in Figure 6.14. The jumper has a mass of m-80.0 kg and a height of Ljumper 1.85 m, we can think of a bungee cord as a spring. The spring constant of the bungee cord is k-50.0 N/m. Assume that the mass of the bungee cord is negligible compared with the jumper's mass Lo PROBLENM The jumper wants to...
A 65.2-kg bungee jumper is standing on a tall platform (h_0 = 46.2 m), as indicated in the figure. The bungee cord has a natural length of L_0 = 8.40 m and, when stretched, behaves like an ideal spring with a spring constant of k = 48.3 N/m. The jumper falls from rest, and it is assumed that the only forces acting on him are his weight and, for the latter part of the descent, the elastic force of the...
4./Your adventurous friend Lola goes bungee jumping. She leaps from a bridge that is 100 m above a river. Her bungee cord has an un-stretched length of 50 m and a spring constant k - 600 N/m. Lola has a mass of 48 kg. How fast is she falling when she just starts to stretch the cord? How long does it take for Lola to reach this point? a) Lola stretches the bungee cord and it brings her to a...
I uetermi ine how high to start to just touch the water below? Experiment Overview This experiment will model a bungee jumper who jumps from a The bridge into a canyon. bungee jumpe bouncing back up towards the bridge. The ex spring represents the connected r fa Ils and just barely touches the water in the river below before perimental apparatus is shown in Fig. 1. The e bungee cord. The egg represents the surface of the water. A mass...
Two people respectively 100kg and 70kg, are standing on a bridge
100m above water. They are attached to an bungee cable with
coefficient of k=3 kN/m. Find Initial length of the cable if its
max length is when the people touch the water. Height of people is
negligible. Found L initial to be 10.54m. Now I must find the
height person 2 (70kg) will reach on the way back up if person one
(100kg) were to let go when max...
When bungee jumping from a high bridge over Victoria Falls, an operator first attaches an elastic rope to the jumper. The jumper then jumps off the bridge, falling freely until they reach the unstretched length of the rope Then, the rope begins to stretch and slows the jumper to a stop. The rope pulls the jumper back up, and they oscillate up and down for a while until the operator pulls the jumper back up to the bridge. The rope...
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